<template>
<div class="order-list">
    <order-header title="订单列表">
        <template v-slot:tip>
            <span>请谨防钓鱼链接或诈骗电话，了解更多></span>
        </template>
    </order-header>
    <div class="wrapper">
        <div class="container">
            <div class="order-box">
                <loading v-if="loading"></loading>
                <div class="order" v-for="(order, index) in list" :key="index">
                    <div class="order-title">
                        <div class="item-info fl">
                            {{ order.createTime }}
                            <span>|</span>
                            {{ order.receiverName }}
                            <span>|</span>
                            订单号：{{ order.orderNo }}
                            <span>|</span>
                            {{ order.paymentTypeDesc }}
                        </div>
                        <div class="item-money fr">
                            <span>应付金额：</span>
                            <span class="money">{{ order.payment }}</span>
                            <span>元</span>
                        </div>
                    </div>
                    <div class="order-content clearfix">
                        <div class="good-box fl">
                            <div class="good-list" v-for="(item, i) in order.orderItemVoList" :key="i">
                                <div class="good-img">
                                    <img v-lazy="item.productImage" alt />
                                </div>
                                <div class="good-name">
                                    <div class="p-name">{{ item.productName }}</div>
                                    <div class="p-money">{{ item.totalPrice + "X" + item.quantity }}元</div>
                                </div>
                            </div>
                        </div>
                        <div class="good-state fr" v-if="order.status == 20">
                            <a href="javascript:;">{{ order.statusDesc }}</a>
                        </div>
                        <div class="good-state fr" v-else>
                            <a href="javascript:;">{{ order.statusDesc }}</a>
                        </div>
                    </div>
                </div>

                <el-pagination v-if="flase" class="pagination" background layout="prev,pager,next,jumper" :pageSize="pageSize" :total="total" @current-change="handleChange"></el-pagination>

                <div class="load-more" v-if="true">
                    <el-button type="primary" :loading="loading" @click="loadMore">加载更多</el-button>
                </div>

                <div v-if="false" class="scroll-more" v-infinite-scroll="scrollMore" infinite-scroll-disabled="true" infinite-scroll-distance="110">
                    <img src="/imgs/loading-svg/loading-spinning-bubbles.svg" alt v-show="loading" />
                </div>

                <no-data v-if="!loading && list.length == 0"></no-data>
            </div>
        </div>
    </div>
</div>
</template>

<script>
import OrderHeader from "@/components/OrderHeader.vue";
import Loading from "@/components/Loading";
import NoData from "./../components/NoData";
import infiniteScroll from "vue-infinite-scroll";
import {
    Pagination,
    Button
} from "element-ui";

export default {
    name: "order-list",
    data() {
        return {
            pageNum: 1, //页数
            pageSize: 10, //每页放几条数据
            total: 0, //总数
            list: [],
            loading: false, // loading 组件show还是hide
            showNextPage: true, //加载更多：是否显示按钮
            busy: false, //滚动加载，是否触发
            timer: null,
        };
    },
    components: {
        OrderHeader,
        [Pagination.name]: Pagination,
        [Button.name]: Button,
        Loading,
        NoData,
    },
    directives: {
        infiniteScroll,
    },
    mounted() {
        this.getOrderList();
    },
    beforeDestroy() {
        clearTimeout(this.timer);
    },
    methods: {
        getOrderList() {
            this.loading = true;
            this.busy = true;
            this.axios
                .get("/orders", {
                    params: {
                        pageSize: this.pageSize,
                        pageNum: this.pageNum,
                    },
                })
                .then((res) => {
                    this.loading = false;
                    this.busy = false;
                    this.list = this.list.concat(res.list);
                    // this.list = res.list;
                    this.total = res.total;
                })
                .catch(() => {
                    this.loading = false;
                });
        },
        // 第一种方法：分页器
        handleChange(pageNum) {
            this.pageNum = pageNum;
            this.getOrderList();
        },
        // 第二种方法：加载更多按钮
        loadMore() {
            this.pageNum++;
            this.getOrderList();
        },

        // 第三种方法：滚动加载，通过npm插件实现
        scrollMore() {
            this.busy = true;
            this.timer = setTimeout(() => {
                this.pageNum++;
                this.getList();
            }, 1000);
        },

        // 专门给scrollMore使用
        getList() {
            this.loading = true;
            this.axios
                .get("/orders", {
                    params: {
                        pageSize: 10,
                        pageNum: this.pageNum,
                    },
                })
                .then((res) => {
                    this.list = this.list.concat(res.list);
                    this.loading = false;
                    if (res.hasNextPage) {
                        this.busy = false;
                    } else {
                        this.busy = true;
                    }
                });
        },
    },
};
</script>

<style lang="scss">
@import "./../assets/scss/config.scss";
@import "./../assets/scss/mixin.scss";

.order-list {
    .wrapper {
        background-color: $colorJ;
        padding-top: 33px;
        padding-bottom: 110px;

        .order-box {
            .order {
                @include border();
                background-color: $colorG;
                margin-bottom: 31px;

                &:last-child {
                    margin-bottom: 0;
                }

                .order-title {
                    @include height(74px);
                    background-color: $colorK;
                    padding: 0 43px;
                    font-size: 16px;
                    color: $colorC;

                    .item-info {
                        span {
                            margin: 0 9px;
                        }
                    }

                    .money {
                        font-size: 26px;
                        color: $colorB;
                    }
                }

                .order-content {
                    padding: 0 43px;

                    .good-box {
                        width: 88%;

                        .good-list {
                            display: flex;
                            align-items: center;
                            height: 145px;

                            .good-img {
                                width: 112px;

                                img {
                                    width: 100%;
                                }
                            }

                            .good-name {
                                font-size: 20px;
                                color: $colorB;
                            }
                        }
                    }

                    .good-state {
                        @include height(145px);
                        font-size: 20px;
                        color: $colorA;

                        a {
                            color: $colorA;
                        }
                    }
                }
            }

            .pagination {
                text-align: right;
            }

            .el-pagination.is-background .el-pager li:not(.disabled).active {
                background-color: #ff6600;
            }

            .el-button--primary {
                background-color: #ff6600;
                border-color: #ff6600;
            }

            .load-more,
            .scroll-more {
                text-align: center;
            }
        }
    }
}
</style>
